Does anyone know what percentage increase in fuel is given by the computer at the point of vtec engagement? I have a ls/vtec that i'm trying to get the vtec set to engage at 5400, and it's bogging for about 200 rpm's. I think that I'm dumping too much gas at that point and flooding it. I have a 17% increase if fuel at that point and wonder how much I should lower it. Any suggestions would be great.